An apartment building featuring 55 housing units, retail space and a gym could be on its way to Brooklyn Heights.

The 12-story project at 68-70 Schermerhorn Street would span 68,836 square feet, including 3,363 square feet of commercial space, according to plans filed with the city’s Department of Buildings on Friday. Amenities at the building, which is being developed by Orange Management and Lonicera Partners, would include a fitness center and a lounge, and there would be one duplex unit as well.

Cushman & Wakefield was retained to sell the property, but the deal has not officially closed yet, and the site is still owned by Health Center Inc., which purchased it in 1983, according to city records. It currently holds a four-story office building spanning 33,490 square feet, according to Cushman and Wakefield.

Lonicera is also behind a luxury building in Brooklyn Heights with Quinlan Development Group at 153-157 Remsen Street. The two companies worked together on the 60-unit rental building at 267 Pacific Street as well, which they purchased in 2012 for $6.2 million.

Clipper Equity recently purchased a Jehovah’s Witnesses building at 107 Columbia Heights in Brooklyn Heights for $87.5 million, the second biggest deal in Brooklyn during the second quarter, and landlord Gili Haberberg filed plans in late July to build a megamansion in the neighborhood at 67 Remsen Street.